New Original Siemens 3TK2830-1CB30 Industrial Safety Relay Extension Unit 24V AC DC
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New Original Siemens 3TK2830-1CB30 Industrial Safety Relay Extension Unit 24V AC DC
Product Overview
3TK2830-1CB30 is an extension safety relay belonging to the Siemens SIRIUS 3TK28 safety relay series. It serves as an auxiliary expansion unit designed to cooperate with basic safety evaluation relays to expand the quantity of safety output contacts. Powered by 24 V AC/DC, this module receives safety enabling signals from upstream safety relays and provides additional safe contact outputs for controlling contactors, valves and other actuators. Adopting forced-guided contact technology to meet international machinery safety standards, the unit is equipped with screw-type wiring terminals and standard DIN rail mounting structure. It is widely used in automated production lines, machine tools, packaging equipment, robotic workstations and conveyor systems to expand safety output circuits for emergency stop loops, safety door interlock and light curtain protection. The product complies with CE, UL, TÜV and RoHS specifications for global industrial safety applications.
Main Technical Specifications
| Parameter Item | Detailed Specification |
|---|---|
| Model Code | 3TK2830-1CB30 |
| Series | SIRIUS 3TK28 Safety Relay Extension Unit |
| Rated Control Supply Voltage | 24 V AC / DC |
| Voltage Tolerance | 85% ~ 110% of rated voltage |
| Safety Contact Configuration | 3 Normally Open (NO) safety contacts; 1 Normally Closed (NC) signal contact |
| Terminal Type | Screw terminals |
| Rated operational current (AC-15) | 3 A at 230 V AC |
| Rated thermal continuous current | 6 A |
| Contact Structure | Forced-guided contacts (mechanically linked contacts) |
| Response Time | ≤ 25 ms |
| Mechanical Service Life | Up to 10,000,000 switching cycles |
| Safety Classification | PL e, Category 4 when matched with corresponding base safety relays |
| Mounting Standard | 35 mm DIN rail |
| Protection Class | IP20 (for installation inside control cabinet) |
| Operating Ambient Temperature | -25 ℃ ~ +60 ℃ |
| Storage Temperature | -40 ℃ ~ +80 ℃ |
| Ambient Humidity | 10% ~ 95% RH, non-condensing |
| Status Indicator | LED power supply indication |
| Certifications | CE, UL, TÜV, RoHS |
Overall Dimensions & Net Weight
| Dimension & Weight Parameter | Exact Data |
|---|---|
| External Dimensions | Width 22.5 mm × Height 100 mm × Depth 121.5 mm |
| Single Unit Net Weight | 235 g |
| Packaged Gross Weight | Approximately 275 g |
| Housing Material | Flame retardant thermoplastic engineering plastic |
| Recommended Clearance | Minimum 5 mm gap between adjacent modules on DIN rail |
Primary Main Functions
- Safety Contact Expansion: Increase the number of safe load output contacts of the main safety relay to drive multiple independent actuators simultaneously.
- Signal Transfer for Safety Circuits: Receive enabling signals from front-end safety evaluation units and realize synchronous safe cut-off of multi-channel loads.
- Safety Status Signal Feedback: The built-in NC auxiliary contact transmits the working state of the safety circuit to PLC or upper monitoring system.
- Fail-safe Disconnection Function: When the safety circuit is triggered, all safety contacts reliably open to cut off power of dangerous equipment.
- Compatibility with mainstream safety relays: Can be matched with Siemens 3TK28 and 3SK1 series safety base units for system expansion.
- Reliable Contact Monitoring: Forced-guided contact structure prevents dangerous closed contact faults caused by contact welding.
- Centralized load control: Realize unified safety shutdown of multiple contactors, hydraulic valves and pneumatic actuators in automation equipment.
- Convenient cabinet layout: Slim housing structure supports intensive installation inside compact electrical control cabinets.
Key Technical Features
- Forced-guided contact design strictly meets machinery safety requirements, effectively avoiding hidden dangers caused by contact adhesion failure.
- Compact 22.5 mm slim width saves valuable installation space inside electrical cabinets.
- Universal 24 V AC/DC wide-range power supply adapts to various industrial control power supply environments.
- Standard 35 mm DIN rail structure allows fast installation, disassembly and replacement.
- Visible LED indicator directly reflects power status for quick on-site inspection and troubleshooting.
- High mechanical durability ensures long-term stable cyclic operation under continuous production conditions.
- Screw terminals provide stable wiring connection, suitable for equipment with strong vibration.
- Modular expansion scheme can cascade multiple extension units according to the quantity of required load contacts.
List of 10 Similar Functional Siemens Safety Relay & Extension Units
- 3TK2830-2CB30: Push-in terminal version of 3TK2830-1CB30 safety extension unit
- 3TK2825-1BB40: Integrated safety relay with built-in input evaluation and output contacts
- 3TK2840-1CB30: Time-delay safety extension unit with delayed safety contact opening
- 3SK1220-2AA30: Expansion module for SIRIUS 3SK1 safety relay series
- 3TK2831-1CB30: Safety extension unit with different contact configuration
- 3TK2828-1BB40: Safety relay for safety light curtain and safety door monitoring
- 3SK1111-1AB30: Basic safety evaluation relay with screw terminals
- 3RK3221-1AA10: Modular safety system expansion relay for complex safety circuits
- 3TK2850-1CB30: High-current safety contact extension unit for heavy load actuators
- 3SK2112-1AA10: Programmable high-performance safety relay supporting multi-module expansion
WHO WE ARE
About us
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
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We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
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Our product prices vary according to market conditions and product models. We are committed to providing high quality electronic components at fair and reasonable prices, and offer our customers a variety of incentives and flexible purchasing methods.
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You can contact our customer service staff directly by phone, whatsapp, email, our official website. We support a variety of payment methods, and provide you with fast and safe logistics and distribution services.
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We attach great importance to product quality, all the electronic components we sell come from regular channels and undergo strict quality testing. We promise to provide customers with high-quality electronic components, and provide perfect after-sales service to ensure that customers have no worries in the process of use.
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We provide perfect after-sales service, if you are not satisfied with the purchased electronic components, you can return or exchange them within the specified time. Please refer to our official website or consult our customer service staff for the specific return policy and process.
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We have a professional technical team that can provide technical support and solutions for our customers. Whether you encounter any problems in choosing or using the products, we will be happy to answer your questions and provide professional technical support.
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